[PATCH v7 19/21] iommu/mediatek: Rename enable_4GB to dram_is_4gb

[Yong Wu]

This patch only rename the variable name from enable_4GB to
dram_is_4gb for readable.

Signed-off-by: Yong Wu <yong...@mediatek.com>
Reviewed-by: Evan Green <evgr...@chromium.org>
---
 drivers/iommu/mtk_iommu.c | 10 +++++-----
 drivers/iommu/mtk_iommu.h |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 86158d8..67cab2d 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -382,7 +382,7 @@ static int mtk_iommu_map(struct iommu_domain *domain, 
unsigned long iova,
        int ret;
 
        /* The "4GB mode" M4U physically can not use the lower remap of Dram. */
-       if (data->plat_data->has_4gb_mode && data->enable_4GB)
+       if (data->plat_data->has_4gb_mode && data->dram_is_4gb)
                paddr |= BIT_ULL(32);
 
        spin_lock_irqsave(&dom->pgtlock, flags);
@@ -554,13 +554,13 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data 
*data)
        writel_relaxed(regval, data->base + REG_MMU_INT_MAIN_CONTROL);
 
        if (data->plat_data->m4u_plat == M4U_MT8173)
-               regval = (data->protect_base >> 1) | (data->enable_4GB << 31);
+               regval = (data->protect_base >> 1) | (data->dram_is_4gb << 31);
        else
                regval = lower_32_bits(data->protect_base) |
                         upper_32_bits(data->protect_base);
        writel_relaxed(regval, data->base + REG_MMU_IVRP_PADDR);
 
-       if (data->enable_4GB && data->plat_data->has_vld_pa_rng) {
+       if (data->dram_is_4gb && data->plat_data->has_vld_pa_rng) {
                /*
                 * If 4GB mode is enabled, the validate PA range is from
                 * 0x1_0000_0000 to 0x1_ffff_ffff. here record bit[32:30].
@@ -611,8 +611,8 @@ static int mtk_iommu_probe(struct platform_device *pdev)
                return -ENOMEM;
        data->protect_base = ALIGN(virt_to_phys(protect), MTK_PROTECT_PA_ALIGN);
 
-       /* Whether the current dram is over 4GB */
-       data->enable_4GB = !!(max_pfn > (BIT_ULL(32) >> PAGE_SHIFT));
+       /* Whether the current dram is 4GB. */
+       data->dram_is_4gb = !!(max_pfn > (BIT_ULL(32) >> PAGE_SHIFT));
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        data->base = devm_ioremap_resource(dev, res);
diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h
index 753266b..e8114b2 100644
--- a/drivers/iommu/mtk_iommu.h
+++ b/drivers/iommu/mtk_iommu.h
@@ -65,7 +65,7 @@ struct mtk_iommu_data {
        struct mtk_iommu_domain         *m4u_dom;
        struct iommu_group              *m4u_group;
        struct mtk_smi_iommu            smi_imu;      /* SMI larb iommu info */
-       bool                            enable_4GB;
+       bool                            dram_is_4gb;
        bool                            tlb_flush_active;
 
        struct iommu_device             iommu;
-- 
1.9.1